C31232233133313221211113313331333133313331212111112111113331322331322231311   >>    C3123223313331322121111331333133313331333121211111211111333132233132223131   <<    C31232233133313221211113313331333133313331212111112111113331322331322231313   >>      C31232233133313221211113313331333133313331212111112111113331322331322231312   >>